774
FNCA52 TJSJ 051930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST TUE MAY 5 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-060800-
SOUTHEAST COASTAL PLAINS-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 20 10 10
TEMP (24H TREND) 73 (-2) 89 (+2) 73 90
RH % (24H TREND) 87 (0) 50 (-11) 85 48
WIND 20FT/EARLY(MPH) E 9 E 14 E 11 E 13
WIND 20FT/LATE(MPH) E 9 SE 14 NE 10 SE 14
MIXING HGT(FT-AGL/MSL) 4870 5130
TRANSPORT WND (MPH) E 14 E 10
VENT RATE (KT-FT) 58440 46170
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-060800-
SOUTHERN HILLS-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 0 20
TEMP (24H TREND) 70 (-3) 87 (+4) 70 87
RH % (24H TREND) 96 (+3) 61 (-10) 95 60
WIND 20FT/EARLY(MPH) SE 9 E 11 E 9 E 10
WIND 20FT/LATE(MPH) E 9 SE 11 E 9 SE 11
MIXING HGT(FT-AGL/MSL) 5280 6020
TRANSPORT WND (MPH) E 13 E 8
VENT RATE (KT-FT) 58080 42140
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-060800-
NORTH COASTAL PLAINS-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 10 20
TEMP (24H TREND) 71 (-3) 90 (0) 71 90
RH % (24H TREND) 96 (0) 57 (-7) 97 59
WIND 20FT/EARLY(MPH) SE 10 E 12 E 11 E 11
WIND 20FT/LATE(MPH) SE 10 E 16 E 10 E 17
MIXING HGT(FT-AGL/MSL) 5130 5080
TRANSPORT WND (MPH) E 13 E 10
VENT RATE (KT-FT) 56430 45720
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-060800-
NORTHERN HILLS-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 0 20 0 20
TEMP (24H TREND) 69 (-3) 89 (+1) 70 89
RH % (24H TREND) 96 (-1) 59 (-5) 99 59
WIND 20FT/EARLY(MPH) SE 8 E 10 E 9 E 9
WIND 20FT/LATE(MPH) SE 5 E 13 E 8 NE 13
MIXING HGT(FT-AGL/MSL) 5900 6020
TRANSPORT WND (MPH) E 9 E 7
VENT RATE (KT-FT) 47200 36120
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-060800-
WEST COAST-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR MCLEAR CLEAR MCLEAR
PRECIP TYPE NONE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 0 40 0 20
TEMP (24H TREND) 73 (-1) 91 (+1) 72 91
RH % (24H TREND) 95 (0) 59 (-6) 96 59
WIND 20FT/EARLY(MPH) SE 9 E 12 E 8 E 11
WIND 20FT/LATE(MPH) E 10 E 13 E 10 E 11
MIXING HGT(FT-AGL/MSL) 5120 4810
TRANSPORT WND (MPH) SE 13 SE 7
VENT RATE (KT-FT) 56320 28860
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-060800-
EASTERN INTERIOR-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 10 20
TEMP (24H TREND) 71 (-3) 88 (+3) 71 88
RH % (24H TREND) 97 (+2) 61 (-8) 95 61
WIND 20FT/EARLY(MPH) SE 12 E 11 E 10 E 11
WIND 20FT/LATE(MPH) SE 11 SE 12 E 10 E 11
MIXING HGT(FT-AGL/MSL) 5720 6410
TRANSPORT WND (MPH) SE 13 E 8
VENT RATE (KT-FT) 62920 44870
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-060800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 30 20
TEMP (24H TREND) 70 (-3) 83 (+3) 70 83
RH % (24H TREND) 99 (+3) 66 (-11) 97 66
WIND 20FT/EARLY(MPH) SE 10 E 11 E 9 E 10
WIND 20FT/LATE(MPH) SE 10 SE 11 E 8 E 9
MIXING HGT(FT-AGL/MSL) 4600 4840
TRANSPORT WND (MPH) SE 14 E 10
VENT RATE (KT-FT) 55200 43560
DISPERSION 5 5
DSI 5 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-060800-
CENTRAL MOUNTAIN RANGE-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR MCLEAR CLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 0 20 0 20
TEMP (24H TREND) 67 (-3) 86 (+4) 67 86
RH % (24H TREND) 98 (+2) 61 (-10) 97 61
WIND 20FT/EARLY(MPH) SE 6 E 9 E 8 E 6
WIND 20FT/LATE(MPH) SE 5 SE 9 E 6 E 8
MIXING HGT(FT-AGL/MSL) 6610 7190
TRANSPORT WND (MPH) E 7 NE 5
VENT RATE (KT-FT) 39660 28760
DISPERSION 5 5
DSI 1 6 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-060800-
CAYEY MOUNTAIN RANGE-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 20 20
TEMP (24H TREND) 69 (-3) 83 (+3) 69 83
RH % (24H TREND) 98 (0) 66 (-11) 97 66
WIND 20FT/EARLY(MPH) SE 8 E 10 E 8 E 9
WIND 20FT/LATE(MPH) E 8 SE 10 E 8 E 9
MIXING HGT(FT-AGL/MSL) 4950 5400
TRANSPORT WND (MPH) E 13 E 8
VENT RATE (KT-FT) 54450 37800
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-060800-
VIEQUES-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 30 20
TEMP (24H TREND) 76 (-2) 87 (+1) 77 87
RH % (24H TREND) 89 (+1) 60 (-7) 86 61
WIND 20FT/EARLY(MPH) SE 13 E 13 E 11 E 12
WIND 20FT/LATE(MPH) E 13 E 11 E 12 E 10
MIXING HGT(FT-AGL/MSL) 3760 3450
TRANSPORT WND (MPH) E 16 E 15
VENT RATE (KT-FT) 52640 44850
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-060800-
CULEBRA-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 10 30 20
TEMP (24H TREND) 77 (-2) 89 (+2) 78 87
RH % (24H TREND) 93 (+6) 61 (-8) 87 60
WIND 20FT/EARLY(MPH) SE 14 E 13 E 11 E 13
WIND 20FT/LATE(MPH) E 14 E 12 E 12 E 10
MIXING HGT(FT-AGL/MSL) 3810 3300
TRANSPORT WND (MPH) E 16 E 15
VENT RATE (KT-FT) 53340 42900
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-060800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR MCLEAR CLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 0 10 0 10
TEMP (24H TREND) 74 (-2) 91 (+2) 73 91
RH % (24H TREND) 89 (+2) 50 (-8) 87 48
WIND 20FT/EARLY(MPH) E 13 E 17 E 13 E 17
WIND 20FT/LATE(MPH) E 14 SE 19 E 12 SE 17
MIXING HGT(FT-AGL/MSL) 4980 5090
TRANSPORT WND (MPH) E 18 SE 13
VENT RATE (KT-FT) 79680 55990
DISPERSION 5 5
DSI 5 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-060800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 10 20 20
TEMP (24H TREND) 75 (-2) 86 (+1) 75 86
RH % (24H TREND) 95 (+3) 64 (-6) 94 62
WIND 20FT/EARLY(MPH) SE 14 E 13 E 11 E 12
WIND 20FT/LATE(MPH) E 13 E 13 E 12 E 10
MIXING HGT(FT-AGL/MSL) 3790 3240
TRANSPORT WND (MPH) E 16 E 15
VENT RATE (KT-FT) 53060 42120
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-060800-
ST CROIX-
330 PM AST TUE MAY 5 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 20 20
TEMP (24H TREND) 76 (-2) 87 (+1) 74 86
RH % (24H TREND) 94 (+4) 63 (-7) 93 63
WIND 20FT/EARLY(MPH) E 13 E 13 E 11 E 12
WIND 20FT/LATE(MPH) E 13 E 13 E 12 E 10
MIXING HGT(FT-AGL/MSL) 4390 4520
TRANSPORT WND (MPH) E 17 E 10
VENT RATE (KT-FT) 65850 40680
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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